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IR3523MPBF Datasheet(PDF) 7 Page - International Rectifier |
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IR3523MPBF Datasheet(HTML) 7 Page - International Rectifier |
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7 / 37 page  IR3523 Page 7 of 37 June 20, 2008 Note 1: Guaranteed by design, but not tested in production Note 2: VDACx Outputs are trimmed to compensate for Error & Amp Remote Sense Amp input offsets PARAMETER TEST CONDITION MIN TYP MAX UNIT Over Voltage Protection (OVP) Comparators Threshold at Power-up (Output 2) 1.85 1.95 2.05 V Threshold at Power-up (Output 1) 1.39 1.47 1.55 V Voutx Threshold Voltage Compare to V(VDACx) 100 125 150 mV OVP Release Voltage during Normal Operation Compare to V(VDACx) -25 3 25 mV Threshold during Dynamic VID down (Output 2) 1.87 1.93 1.99 V Threshold during Dynamic VID down (Output 1) 1.24 1.33 1.37 V Dynamic VID Detect Comparator Threshold Note 1 25 50 75 mV Propagation Delay to IIN Measure time from V(Voutx) > V(VDACx) (250mV overdrive) to V(IINx) transition to > 0.9 * V(VCCL). 90 180 ns OVP High Voltage Measure V(VCCL)-V(ROSC/OVP) 0 1.2 V OVP Power-up High Voltage V(VCCLDRV)=1.8V. Measure V(VCCL)- V(ROSC/OVP) 0 0.2 V Propagation Delay to OVP Measure time from V(Voutx) > V(VDAC) (250mV overdrive) to V(ROSC/OVP) transition to >1V. 150 300 ns IIN Pull-up Resistance 5 15 Over-Current Comparators Input Offset Voltage 1V ≤ V(OCSETx) ≤ 3.3V -35 0 35 mV OCSET Bias Current -5% Vrosc(V)*1000/ Rosc(K ) +5% µA 2048-4096 Count Threshold Adjust ROSC value to find threshold Note 1 11.3 16 23.1 k 1024-2048 Count Threshold Adjust ROSC value to find threshold Note 1 14.4 20 29.1 k Open Sense Line Detection Sense Line Detection Active Comparator Threshold Voltage 150 200 250 mV Sense Line Detection Active Comparator Offset Voltage V(Voutx) < [V(VOSEN+) – V(LGND)] / 2 35 60 85 mV VOSEN+ Open Sense Line Comparator Threshold Compare to V(VCCL) 86.5 89.0 91.5 % VOSEN- Open Sense Line Comparator Threshold 0.36 0.40 0.44 V Sense Line Detection Source Currents V(Voutx) = 100mV 200 500 700 uA VCCL Regulator Amplifier Reference Feedback Voltage 1.15 1.2 1.25 V VCCLFB Bias Current -1 0 1 uA VCCLDRV Sink Current 10 30 mA UVLO Start Threshold Compare to V(VCCL) 89.0 93.5 97.0 % UVLO Stop Threshold Compare to V(VCCL) 81.0 85.0 89.0 % Hysteresis Compare to V(VCCL) 7.0 8.25 9.5 % General VCCL Supply Current 4 10 15 mA |
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